Enhancing Corrosion Resistance of Copper for C4F7N Based Eco-Friendly Gas-Insulated Equipment

Song Xiao; Haoran Xia; Zhanyuan Li; Yifan Wang; Ju Tang; Xiaoxing Zhang; Yi Li

doi:10.1049/hve2.70018

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Enhancing Corrosion Resistance of Copper for C4F7N Based Eco-Friendly Gas-Insulated Equipment

更新时间：2026-03-24

- Enhancing Corrosion Resistance of Copper for C4F7N Based Eco-Friendly Gas-Insulated Equipment
- High Voltage Vol. 10, Issue 5, (2025)
- 作者机构：
  
  1. State Key Laboratory of Power Grid Environmental Protection, School of Electrical Engineering and Automation, Wuhan University,Hubei,China
  2. Baoding Baoling Transformer Company Ltd.,Baoding,China
  3. Key Laboratory for High-Efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, School of Electrical and Electronic Engineering, Hubei University of Technology,Wuhan,China
- 作者简介：
- 基金信息：
- DOI：10.1049/hve2.70018
  CLC：
- Published：2025
- 稿件说明：
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Song Xiao, Haoran Xia, Zhanyuan Li, et al. Enhancing Corrosion Resistance of Copper for C4F7N Based Eco-Friendly Gas-Insulated Equipment[J]. High Voltage, 2025, 10(5).
DOI：

Song Xiao, Haoran Xia, Zhanyuan Li, et al. Enhancing Corrosion Resistance of Copper for C4F7N Based Eco-Friendly Gas-Insulated Equipment[J]. High Voltage, 2025, 10(5). DOI： 10.1049/hve2.70018.

摘要

Abstract

Perfluoroisobutyronitrile (C4F7N) is recognised as the next-generation dielectric medium for eco-friendly gas-insulated equipment (GIE). However

there is gas metal incompatibility in strong electromagnetic environments and environmentally friendly insulating gas atmospheres that endangers the operational safety and service life of GIE. Here

a solvent-induced grain boundary reconstruction method was proposed to prepare corrosion-resistant copper rapidly. Accordingly

the partial discharge-induced gas–metal interaction was simulated and the corrosion resistance properties of copper were evaluated. Additionally

the gas–solid interaction mechanism was investigated and the improvement mechanism of the proposed method on the stability of the gas–solid interface was discussed. Related results provide a reference for the development and application reliability of C4F7N-based eco-friendly GIE.

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